Drive unit
    1.
    发明授权

    公开(公告)号:US12109876B2

    公开(公告)日:2024-10-08

    申请号:US17683861

    申请日:2022-03-01

    Abstract: A drive unit includes a first electric motor, a fluid coupling, a pump, a second electric motor, and a controller. The first electric motor is configured to drive a drive wheel. The fluid coupling is configured such that a torque outputted from the first electric motor is inputted thereto. The pump is configured to supply a working fluid to an interior of the fluid coupling. The second electric motor is configured to drive the pump. The controller controls the second electric motor based on at least one of an input/output rotational ratio of the fluid coupling, a temperature of the working fluid in the interior of the fluid coupling, or an amount of the working fluid in the interior of the fluid coupling.

    Device and Method for Controlling and Supplying Energy to Components in Vehicles

    公开(公告)号:US20240326596A1

    公开(公告)日:2024-10-03

    申请号:US18576410

    申请日:2022-07-06

    Abstract: A device for controlling and supplying energy to components in vehicles, in particular utility vehicles, includes at least one support element which is paired with at least one first actuator component, and a first energy storage device which is mounted on the support element and which is designed to supply energy to the first actuator component. The first actuator component and/or at least one first controller is mounted on the support element, the first controller being designed to at least partly actuate the first actuator component. Additionally, at least one second controller can be mounted on the support element. The second controller is designed to at least partly actuate at least one second actuator component, wherein the support element is not paired with the second actuator component. Alternatively or in addition to the second controller, a second energy storage device can be mounted on the support element. The second energy storage device is designed to supply energy to the second actuator component.

    CONSTRUCTION MACHINE AND OPERATION METHOD
    5.
    发明公开

    公开(公告)号:US20240294095A1

    公开(公告)日:2024-09-05

    申请号:US18572947

    申请日:2022-06-23

    Inventor: Jong Min NA

    Abstract: This disclosure relates to a construction machine utilizing battery and hydraulic power and comprising an electronic power unit comprising a battery and an electric motor, a hydraulic pump driven by the electronic power unit and discharging hydraulic fluid, a hydraulic line through which the hydraulic fluid discharged from the hydraulic pump moves, a main control valve installed on the hydraulic line and controlling the supply of the hydraulic fluid to at least one of propulsion devices or various working devices requiring hydraulic power, a bypass cut valve installed downstream of the main control valve on the hydraulic line and configured to open and close the hydraulic line, and a controller initiating a warm-up mode to increase the output of the electronic power unit and open the bypass cut valve.

    ELECTRIC POWERTRAIN WORK MODES
    7.
    发明公开

    公开(公告)号:US20240286491A1

    公开(公告)日:2024-08-29

    申请号:US18692652

    申请日:2021-10-14

    Applicant: Cummins Inc.

    Abstract: A control system for off-highway battery application powertrain systems that allows the operator to select one or more performance/operating modes. The one or more performance modes may be based on the work that needs to be accomplished using the machine vs. the hours needed before the next charge opportunity. Modes will take typically into consideration battery management system performance maps, Electric motor/inverter performance maps, pump performance maps and other systems communicating with the powertrain system. The operator is in control to optimize refill and/or next battery charge. The operator may have the option to select performance modes based on excavator performance vs. battery life. Remaining time and warning messages may be periodically sent to the operator based on the performance mode selected and current state of charge.

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